摘要
利用磁力法探測地下構造或目標物時，環境存在著許多雜信，常見者如：遠處長波雜信、隨機無序分布之雜信以及背景磁力的變化等等，所以其所量測到的磁力數據往往都必須經過濾波的步驟後，方能初步判讀出目標物位置或地下構造。
本研究的模型測試證實小波多層次分析與適性濾波（本文意指維那與中值濾波兩者）對雜信濾除的可行性後，將野外1D和2D磁力數據透過小波多層次分析與適應性濾波將野外雜信濾除，並將信號加以重組分析，爾後，再進行信號分析以辨識地下構造（地層層面）。
本研究測區地下構造為砂頁岩互層之傾斜地層，測區內除上述野外常見的雜信外，還有來自側向岩壁效應的雜信。經濾波分析結果顯示適應性濾波可有效濾除隨機無序的雜信；而小波多層次分析則有助於信號重組時的對於高低頻雜信的篩選，因此在本研究中成功的強調出地下淺層構造信號並得以辨識出地層層面位置。

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